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US 6,298,304 B1Granted
Local navigation alternatives
AssigneeNokia Mobile Phones Ltd.
InventorWolfgang Theimer
Life of this patent
Estimating the term…
Abstract
A vehicle navigation system calculates a route from a start point to a destination further determines alternative routes within a detour region. If the user of the navigation system has left the calculated route the navigation system suggests alternative routes for returning the vehicle to the suggested route within the detour region.
Claims28
A vehicle navigation system comprising:
- a data processor carried by a vehicle;
- a route calculator for providing a suggested route for the vehicle between journey start and end points, and for calculating, for selected positions in a detour region bordering the suggested route, respective detour routes for returning the vehicle to the suggested route, the route calculator being located remote from the vehicle;
- means for loading the suggested route and detour routes into the processor;
- means for determining the selected position within the detour region closest to the vehicle;
- and
- means responsive to the determining means for providing detour route guidance instructions for returning the vehicle to the suggested route.
3 more elements
A method for vehicle navigation comprising:
- locating a data processor in a vehicle;
- locating a route calculator remote from the vehicle;
- calculating by the route calculator a suggested route for the vehicle between journey start and end points;
- calculating by the route calculator, for selected positions in a detour region bordering the suggested route wherein the vehicle may travel into the detour region, respective detour routes for returning the vehicle to the suggested route;
- loading the suggested route and detour routes into the processor;
- determining by the data processor the selected position within the detour region closest to the vehicle;
- and
- providing detour route guidance instructions for returning the vehicle to the suggested route.
5 more elements
A vehicle navigation system comprising:
- a data processor carried by a vehicle;
- a route calculator for providing a suggested route for the vehicle between journey start and end points, and for calculating, for selected positions in a detour region bordering the suggested route, respective
- a communication link interconnecting the route calculator with the data processor for loading the suggested route and detour routes from the route calculator into the processor;
- equipment for sensing position of the vehicle, wherein the data processor determines a selected position of the vehicle within the detour region closest to the vehicle, based on position information of the position sensing equipment;
- and
- the data processor provides detour route guidance instructions for returning the vehicle to the suggested route.
3 more elements
A vehicle navigation system comprising:
- a data processor and vehicular position sensing equipment carried by a vehicle;
- a route calculator located remote from the vehicle, the route calculator providing a suggested route for the vehicle between journey start and end points, and wherein the route calculator calculates, for selected positions in a detour region bordering the suggested route, respective detour routes for returning the vehicle to the suggested route, calculations of the route calculator being based on travel information available to the route calculator but unavailable at the vehicle;
- a communication link interconnecting the route calculator with the data processor for loading the suggested route and detour routes from the route calculator into the processor;
- wherein the data processor determines a selected position of the vehicle within a detour region closest to the vehicle, based on position information of the position sensing equipment;
- and
- the data processor provides detour route guidance instructions for returning the vehicle to the suggested route, based on route data from the route calculator.
3 more elements
Dependencies are inferred from the claim text.